Kufotokozera za bere ndi tanthauzo lake

 

Tsopanochogwirirachitsanzo chimawonjezeka pang'onopang'ono malinga ndi zosowa zosiyanasiyana za anthu omwe alipo, ndipo tsopano netiweki yapangidwa bwino kwambiri, kutumiza chidziwitso nakonso kumakhala kofulumira kwambiri, ndipo ndikosavuta kudziwa chitsanzo cha bearing. Kenako, tikudziwitsani za code yoyambira, post-code, pre-code ndi zina zokhudzana nazo za bearing.

 

Kunyamulakutchulidwa ndi tanthauzo lake Zigawo za kutchulidwa kwa bere

 

ThechogwiriraKawirikawiri chitsanzo chimakhala ndi pre-code, basic code ndi post-code. Kawirikawiri, bearing design imasonyezedwa ndi basic design yokha. Chitsanzo choyambirira chimakhala ndi magawo atatu, mtundu wa code, kukula kwa code ndi inner diameter code. Post-code imagwiritsa ntchito zilembo ndi manambala kusonyeza kapangidwe, kulolerana ndi zofunikira zapadera za zinthuzo. Prefix code imagwiritsidwa ntchito kusonyeza zigawo zazing'ono za bearing, zomwe zimasonyezedwa ndi zilembo.

 

Njira Yodziwira Kutengera Cholinga Chachikulu (Kutengera Zozungulira)

 

Imagawidwa m'magulu awiri: pre-code, basic code ndi post-code.

 

1. Dzina loyambira la code

 

(Kodi ya mtundu, khodi ya kukula, khodi ya m'mimba mwake wamkati [manambala awiri])

 

Khodi yoyambira imagwiritsidwa ntchito kusonyeza m'mimba mwake wamkati, m'mimba mwake, m'lifupi mwake ndi mtundu wa chogwirira, nthawi zambiri mpaka manambala asanu, motere:

 

1) M'mimba mwake wa mkati mwa bearing mukuwonetsedwa ndi nambala yoyamba kuchokera kumanja kwa code yoyambira. M'mimba mwake wa mkati mwa bearing ndi m'mimba mwake wamkati wofanana wa d=20~480mm nthawi zambiri umakhala wochulukitsa wa 5, ndipo manambala awiriwa akuyimira quotient ya kukula kwa m'mimba mwake wamkati wogawidwa ndi 5, monga 04 amatanthauza d=20mm; 12 amatanthauza d=60mm, ndi zina zotero. Pa ma bearing omwe ali ndi m'mimba mwake wamkati wa 10mm, 12mm, 15mm ndi 17mm, ma code a m'mimba mwake wamkati ndi 00, 01, 02 ndi 03 motsatana. Pa ma bearing omwe ali ndi m'mimba mwake wamkati wochepera 10mm ndi woposa 500mm, njira yofotokozera m'mimba mwake wamkati yafotokozedwa mwanjira ina, chonde onani GB/T272-93.

 

2) Mndandanda wa mainchesi a bearing (monga, mndandanda wa kusintha kwa mainchesi akunja ndi m'lifupi mwa bearing yokhala ndi kapangidwe kofanana ndi mainchesi amkati omwewo) umawonetsedwa ndi nambala yachitatu kuchokera kumanja kwa code yoyambira. Mwachitsanzo, pa ma radial ndi ma radial thrust bearing, 0 ndi 1 akuwonetsa mndandanda wowonjezera wa kuwala; 2 akuwonetsa mndandanda wa kuwala; 3 akuwonetsa mndandanda wapakati; 4 akuwonetsa mndandanda wolemera. Kuyerekeza kukula pakati pa mndandanda kukuwonetsedwa pachithunzi pansipa. Ma thrust bearing kupatula 1 kuyimira mndandanda wa kuwala, zina zonse ndi ma radial bearing ndi ofanana.

 

3) Mndandanda wa m'lifupi wa bearing (monga, mndandanda wa kusintha kwa m'lifupi mwa bearing yokhala ndi kapangidwe komweko, m'mimba mwake wamkati ndi m'mimba mwake) umawonetsedwa ndi nambala yachinayi kuchokera kumanja kwa code yoyambira. Pamene kufananiza mndandanda wa m'mimba mwake wa mndandanda wa m'lifupi mu Chithunzi 13-4 kwalembedwa ngati mndandanda wa 0 (mndandanda wamba), khodi ya m'lifupi O singatchulidwe mu khodi ya mabearing ambiri, koma pa mabearing ozungulira ozungulira ndi mabearing ozungulira opendekeka, khodi ya m'lifupi 0 iyenera kulembedwa.

 

Ma code a diameter series ndi ma code a width series onse pamodzi amatchedwa ma code a dimension series.

 

4) Khodi ya mtundu wa bearing imayimiridwa ndi nambala yachisanu kuchokera kumanja kwa code yoyambira (ya ma bearing a cylindrical roller ndi ma bearing a needle roller, code ndi chilembo).

 

2. Khodi ya positi

 

Post-code ya bearing ndi kugwiritsa ntchito zilembo ndi manambala kusonyeza kapangidwe, kulekerera ndi zofunikira zapadera za zinthuzo. Pali zambiri zomwe zili mu post-code, ndipo apa pali mayina angapo a code omwe amagwiritsidwa ntchito kwambiri.

 

1) Khodi ya kapangidwe ka mkati imasonyeza kapangidwe kosiyana ka mkati ka mtundu womwewo wa chogwirira, chomwe chikuwonetsedwa ndi zilembo zotsatiridwa ndi code yoyambira. Mwachitsanzo, mabearing a mpira wolumikizana ndi angular omwe ali ndi ma angles olumikizana a 15°, 25° ndi 40° motsatana amaimiridwa ndi C, AC ndi B kuti awonetse kusiyana kwa kapangidwe ka mkati.

 

2) Giredi ya tolerance ya bearing yagawidwa m'magiredi awiri, magiredi anayi, magiredi asanu, magiredi asanu ndi limodzi, magiredi asanu ndi limodzi ndi magiredi asanu ndi limodzi ndi magiredi asanu ndi limodzi, magiredi asanu ndi limodzi ndi asanu ndi limodzi, kuyambira pamwamba mpaka pansi, ndipo ma code awo ndi /PZ, /P4, /PS, /P6, /P6X ndi /PO. Pakati pa ma class a tolerance, kalasi ya 6X imangogwira ntchito pa ma tapered roller bearing; Level 0 ndi giredi wamba, yomwe siili mu wheel bearing code.

 

3) Mndandanda wa ma bearing radial clearance omwe amagwiritsidwa ntchito kwambiri umagawidwa m'magulu 1, magulu awiri, magulu 0, magulu atatu, magulu 4 ndi magulu 5, magulu onse 6, ndipo ma radial clearance kuyambira ang'onoang'ono mpaka akulu. Gulu la o clearance ndi gulu la ma bearing clearance lomwe limagwiritsidwa ntchito kwambiri, lomwe silinalembedwe mu bearing code, ndipo magulu ena onse otsalawo akuimiridwa ndi /CI, /CZ, /C3, /C4 ndi /CS mu bearing code.

 

3. Khodi yoyambirira

 

Chiyambi cha chizindikiro cha bearing chimagwiritsidwa ntchito kusonyeza magawo ang'onoang'ono a bearing, omwe amasonyezedwa ndi zilembo. Mwachitsanzo, L imagwiritsidwa ntchito kuyimira mphete yolekanitsidwa ya bearing yolekanitsidwa; K imatanthauza zinthu zozungulira ndi zigawo za khola la bearing, ndi zina zotero.

 

Pali mitundu yambiri ya ma rolling bearings omwe amagwiritsidwa ntchito, ndipo ma bearing code ofanana nawonso ndi ovuta kwambiri. Khodi yomwe yatchulidwa pamwambapa ndi gawo losavuta komanso logwiritsidwa ntchito kwambiri la bearing code, ndipo mutha kuzindikira ndikuwona bearing yomwe imagwiritsidwa ntchito kwambiri ngati mukudziwa bwino gawo ili la code. Kuti mudziwe njira yatsatanetsatane ya ma rolling bearings, chonde onani GBT272-93.